Smart home and IoT · MCP server
Openbaud: MCP server, setup and security
Openbaud is an open-source MCP server that lets an AI agent access serial hardware with typed commands and replay captures without hardware. Its repository has 7 stars and its last commit is from October 9, 2026 and it is licensed under MIT.
What Openbaud does
According to its repository: “Local serial hardware access for coding agents with typed YAML commands, checksum validation, audited writes, lossless captures, hardware-free replay, and MCP App visualizations.”
An MCP server gives an AI agent extra tools it calls during the conversation: the agent reads their description, decides to use them and gets the result back. Openbaud is listed under Smart home and IoT, a category of 34 servers in the directory, where it ranks #30 by stars.
Topics declared by the repository: codex-plugin, embedded, hardware, modbus, protocol-reverse-engineering, robotics.
Installing and connecting Openbaud
No package or remote server is declared in the official MCP registry: you install it from source, following the repository README.
Like any MCP server, you declare it in your client's configuration (Claude Desktop, Claude Code, Cursor, VS Code, Codex…): a name, the command that starts it or its URL, and any environment variables. The client then starts it and lists its tools. Project language: Rust. Listed systems: macOS, Windows, Linux.
Security: what to check
An MCP server runs code with the rights you give it, and the model reads its tool descriptions: a malicious or compromised server can hijack the agent. Read the code, or pick a maintained and widely used server, before connecting it.
None of the risk signals we track (system access, secrets, missing licence, abandonment) applies to Openbaud. That does not replace reading the code.
Good practice: grant only the rights needed (least privilege), require human approval for irreversible actions, and run the AI agent security check.
Project activity and maintenance
Created on August 23, 2026, the Leonezz/openbaud repository has 7 stars and 0 forks, with 0 open issues. It has more stars than 19% of the servers in the directory. It received changes this month.
Stars measure attention, not quality: a recent, heavily promoted project can collect them fast, while a useful but niche server will have few.
Verdict
Openbaud is a reasonable choice; check the points below before connecting it.
Strengths
- Active project: recent commit
- Permissive licence (MIT)
Limitations
- Few visible users
- Install from source
Alternatives
- Ha MCP5.2K ★
- Stack chan1.8K ★
- Bagel399 ★
- Tapo MCP863 ★
- Kiln219 ★
- Bambu Printer MCP233 ★
Learn more
Frequently asked questions
How do I install Openbaud?
No package is declared in the MCP registry: clone the Leonezz/openbaud repository, follow its README, then declare the start command in your client's MCP configuration.
Is Openbaud free?
The code is published under the MIT licence and can be used free of charge.
Is Openbaud safe?
No risk signal found (system access, secrets, licence, abandonment). As with any MCP server, keep rights minimal and read the code before sensitive use.
Is it an official server?
Nothing says so: it is a project published by Leonezz on GitHub. Check who maintains it before giving it access.
What are the alternatives to Openbaud?
In the same category: Ha MCP, Stack chan, Bagel, and Tapo MCP. Ha MCP and Stack chan score higher on our grid.
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Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score